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For the Inventor, By the Inventor

Tokyo, Japan

Yoshihiro Tsuchiya

This inventor holds 98 USPTO granted patents and 4 published patent applications, primarily in Magnetoresistive Technology (CPC class G11B5-39). Top assignees: Tdk Corporation, Headway Technologies, Incorporated, Rohm Co., Ltd.. Active years: 2001-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Tsuchiya. Retrieved from https://idiyas.com/inventor/yoshihiro-tsuchiya

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 98 

% Patents Active = 82.7

Average Co-Inventor Count = 3.8

ph-index = 12

Forward Citations = 569(Granted Patents)

Forward Citations (Not Self Cited) = 531(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Saku, JP (2001 - 2002)
  • Chuo-ku, JP (2003 - 2010)
  • Nagano, JP (2017 - 2018)
  • Tokyo, JP (2002 - 2019)

Company Filing History:

goldMedal95 out of 8,257 
 
Tdk Corporation
 patents
silverMedal6 out of 1,230 
 
Headway Technologies, Incorporated
 patents
bronzeMedal2 out of 6,021 
 
Rohm Co., Ltd.
 patents
4. 2 out of 764 
 
Sae Magnetics (h.k.) Limited
 patents
where one patent can have more than one assignee

Years Active: 2001-2019

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Areas of Expertise:
Magnetoresistance
Thermal Assisted Magnetic Recording
Laser Diode
Plasmon Generator
Thin Film Magnetic Head
Magnetic Disk Device
Magneto-Resistive Element
Sputtering
Magnetic Layer
Near-Field Transducer
Gallium Oxide
CPP Structure
98 patents (USPTO):Explore Patents
1. 10332553 - Double ridge near-field transducers (2019-06-25),
2. 10152991 - Method for manufacturing thermally-assisted magnetic recording head with waveguide blocker (2018-12-11),
3. 10043542 - Plasmon generator with separating layer for thermal assisted magnetic recording head (2018-08-07),
4. 9980395 - Method of manufacturing laser diode unit utilizing submount bar (2018-05-22),
5. 9852752 - Plasmon generator with metallic waveguide blocker for TAMR (2017-12-26),
6. 9818436 - Thermal assisted magnetic recording head with plasmon generator (2017-11-14),
7. 9620151 - Plasmon generator with (111) oriented tip portion for thermal assisted magnetic recording head (2017-04-11),
8. 8970995 - Magnetoresistance effect element having layer containing Zn at the interface between magnetic layer and non-magnetic intermediate layer (2015-03-03),
9. 8866041 - Apparatus and method of manufacturing laser diode unit utilizing submount bar (2014-10-21),
10. 8845867 - Method for manufacturing magnetoresistance effect element using simultaneous sputtering of Zn and ZnO (2014-09-30),
11. 8593766 - Magneto-resistive effect element having spacer layer including main spacer layer containing gallium oxide and metal intermediate layer (2013-11-26),
12. 8564911 - Magneto-resistive effect element having spacer layer including gallium oxide layer with metal element (2013-10-22),
13. 8498083 - Magneto-resistive effect element having spacer layer containing gallium oxide, partially oxidized copper (2013-07-30),
14. 8477461 - Thin film magnetic head having a pair of magnetic layers whose magnetization is controlled by shield layers (2013-07-02),
15. 8472150 - Magneto-resistive effect device and magnetic disk system (2013-06-25),

Certainly! Here is the article about inventor Yoshihiro Tsuchiya:

Title: Innovator Spotlight: Yoshihiro Tsuchiya Pushing Boundaries in Magnetic Recording Technology

Introduction:

Yoshihiro Tsuchiya, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of magnetic recording technology. With a remarkable 98 patents to his name, Tsuchiya continues to innovate and redefine the possibilities in thermally assisted magnetic recording (TAMR) technologies.

Latest Patents:

Tsuchiya's latest patents include groundbreaking advancements such as the "Double Ridge Near-Field Transducers," which revolutionize the efficiency and precision of TAMR write heads. By incorporating a gap-based near-field transducer with a double ridge aperture structure, Tsuchiya's design enhances thermal gradients and overall performance, setting a new standard in magnetic recording technology. Additionally, his "Method for Manufacturing Thermally-Assisted Magnetic Recording Head with Waveguide Blocker" showcases his expertise in optimizing heat distribution within recording mediums, ensuring reliability and efficiency in data storage processes.

Career Highlights:

Throughout his illustrious career, Tsuchiya has held key positions at renowned companies such as TDK Corporation and Headway Technologies, Incorporated. His tenure at these industry-leading firms has provided him with invaluable experiences and opportunities to push the boundaries of innovation in magnetic recording technologies.

Collaborations:

Tsuchiya has collaborated closely with esteemed colleagues such as Koji Shimazawa and Shinji Hara, leveraging their collective expertise to drive forward pioneering research and development initiatives. Together, they have spearheaded projects that have revolutionized magnetic recording technologies and paved the way for future advancements in the field.

Conclusion:

In conclusion, Yoshihiro Tsuchiya's relentless pursuit of innovation and his invaluable contributions to the field of magnetic recording technology have solidified his reputation as a trailblazer in the industry. With an impressive patent portfolio and a track record of successful collaborations, Tsuchiya continues to inspire the next generation of inventors and engineers to push the boundaries of what is possible in the world of technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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